<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>欢迎登录</title>
</head>
<body>
<!--<input type="button" onclick='location.href=("index.aspx")' />//在本页面打开-->
<!--<input type="button" onclick='window.open("bedzhao.aspx")' />//打开新页面-->

<button onclick="window.location.href='http://localhost:8080/test1.html'" type="button" id="add">返回1</button>
<button onclick="window.open('http://localhost:8080/test1.html')" type="button">返回2</button>
</body>
</html>